TrinityHighway.com
9
December 2021
Post Placement
The CAT® tube sleeves are inserted into the soil using an auger or post pounding equipment for
placement. If an auger is used, ensure diameter is large enough to allow for proper compaction of
state/specifying agency approved fill material. All CAT® posts must be assembled within established
standard construction tolerances, including being relatively plumb. Compaction for all posts must be
within the state/specifying agency guidelines.
Danger:
It is the responsibility of the installer to ensure all above & below ground utilities
as well as drainage structures are located, marked, and identified prior to using an auger
or post pounding tool in accordance with state/ specifying agency
guidelines. Failure to
follow this warning could result in serious injury or death.
Rigid Pavement and Rock
If rigid pavement (e.g. concrete or asphalt) of any thickness is encountered within the system pay length,
ensure a proper “leave-out” area (the specified size of open space as defined in the AASHTO Roadside
Design Guide) and per the state/specifying agency is provided around the posts and filled with the state/
specifying agency approved backfill material.
If rock is encountered at post locations 3-8, refer to the state/specifying agency guidelines and the
AASHTO Roadside Design Guide for requirements for embedment depth into the rock and size of the
hole. If rock is encountered at post locations 1-2, auger a hole in the rock large enough for full post
embedment and proper compaction of approved fill material.
Drilling Holes into rock
Caution: It is the responsibility of the installer to consult Occupational Safety & Health
Administration (“OSHA”) silica respiratory standard 29 Code of Federal Regulation (“CFR”)
1910.134 for debris removal and ensure compliance.
Inspect Shipment
Carefully unpack and inspect all components for damage. Check the received parts against the packing
list supplied with the system. If any parts are damaged, missing, or unspecified; do not attempt to assemble
the system and contact Trinity Highway immediately (p. 4).
